Clock



FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front elevational view of the clock of FIG. 1;

FIG. 3 is a top plan view of the clock of FIG. 1; and,

FIG. 4 is a right side elevational view of the clock of FIG. 1, the leftside view being a mirror image thereof.

The broken line showing of "buttons" in all figures is for environmentalpurposes only and forms no part of the claimed design.

The ornamental design for a clock, as shown and described.